How to Distinguish from Similar Species: Heteropora magna (considered by many to be another form of this species) is usually colored gray-purple and the branches rarely anastomose. The zooecia protrude slightly, if at all, above the colony. An Alaskan species, H. alaskensis (formerly H. pacifica var alaskensis), grows to only 1.6 cm high and has branches 2 mm in diameter.
Geographical Range: Alaska to Central CA
Depth Range: Very low intertidal to 27 m. Mostly subtidal.
Habitat: Attached to rocks, mainly in areas of brisk water action
could easily be mistaken for a coral or hydrocoral. Many
pacifica and H. magna to be simply
different forms of the same
species. The tips of the branches evidently have live
and the green color elsewhere may be due to unicelluler algae.
Kozloff 1987, 1996
General Notes and
abundances, unusual behaviors:
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Dave Cowles (2007): Created original page
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